Loom-stopping device



Jan. 6. 1925.

s Sh'eets-Shejet 1 attouwq Jan, 6, 1925- o. c. ECKLUND LOOM STOPPING DEVICE Filed Sept. 26, 1923 3 Sheets-Sheet 2 a L 529 & v4 1C942? Jan. e. 1925.

O. c. ECKLUND LOOM STOPPING DEVICE Filed Sept. 26, 1923 3 Sheets-Sheet 5 Patented Jan. 6, 192 5.

a "UNITED stares osoAR o. ECKLUND, or PHiLAiD-ELFHIA, 'eEaNsyivaa-m.

noon-smorieine DEVICE.

Application med September as," trees.- Serial No. 666,005.

To all whom it may concern." 1

Beit known that I, "OSCAR C EcK-LUND, a citizen of the United States, ir'esldin-gat Philadelphia, in the county of'Philadelp'hia,

and State of Pennsylvania, have invented certain new and useful Improvements in Loom-Stopping Devices, of which the foi lowing is'a specification.

My invention relates to loom stoppingdevices which are particularly adapted for use in stopping a loom when shuttles occupy advertence of the'weaver, a shuttle has been placed in each of the boxes aligned with a race. These'devices wereunsatisfactory for various reasons such as not being :sufiiciently sensitive to quickly respond and stop the loom, not beimg reliable for positive operation,.not being automatic in resetting themselves after stopping the loom, not being adjustable to take up wear so as to maintain an accurate setting at all times,,an d being too complicated, and .not standing the strains andwear fora reasonable length of time V f r 7 The objects of my. invention are to provide a loom stopping device which will avoid the above objections and positively stop the loom when, through inadvertence, a shuttle occupies each box aligned with the race; to provide a device which :is accurate and, positive in its operation at all times,- is sensitive to quickly respond and stop the loom; is adjustable to an accurate setting at all times on any type of 100111; is auto} niatic to 're-set' itself after stopping the loom and which is simple and durable in construction. V I i r These objects, and other advantageous ends which will be described. hereinafter, I attain in the following manner, reference being had to the accompanying drawings in w-h-icl1- Figure 1 is a fragmentary topplan view of a loom 0f the drop box' type having my improved loom stopping device applied thereto, 1 1 t Figure 2 an enlarged fragmentary section on line 2 -52015 Figure t Figure 3 a-vertical sectionon line 33 of Figure 2 showing the lay swung to the end of its rearw'ard beat where the picki'ngga'c tion occurs,

1,521,609 PAT ENT; ]OFFIE. f

Figure 4 a similar view'but showing the lay swung to the end of its forward beat where the changingof "the shuttle boxes occurs, f; V l

- Figure 5 a view similar to Figures 3 and 4%. showing the lay swung slightly forward and illustratingmy improved stopping device about to stop the loom, 7

Figure 6 an enlarged perspective view of the stopping plates shown .inigure 3,

Figure 7 a section on line 7+? of Figure 3,

Figure. 8 a 3,'and V p igure 9 :a view similar to Figure 3 illustrating how the arcuate edges bridge the recess and notch 'when they aresl-i'd relatively to each othen section on lined-8 of Figure In the drawingsplfl indicates the frame of the loo-m, 11 the breast beam beneath which is arranged a knockoff shaft 12 having a knock off lever l3 fixed to 'one'end and its )other end connected to. any suitable means for stopping the loom. A laybeam -14 of the batten structure 15 has the .ordinary movableshuttleboxes 16 disposed at its opposite ends for-receiving shuttles 17 which are adapted to be shot across the-race of the lay beam by the picker sticksin the usual manner. The shuttle boxes have the usual binders 18. or i V l My improved stopping device includes a trip 19 'slidable inupright guicleeyes 20 in tegral with a bracket 21 secured to lay'bearn 14. The trip is preferably made fro-in a strip of metal and has its upper end bent or folded downward to provide a rounded or tapered part 22 and ,a shoulder 23. A spring 24, coiled about :a :pin 25 011 trip1'9, has its ends 26 extending through lugs 2 7 on bracket 21. This spring 24 tends. to move trip downward when it is released by mechanism now to be described. Shou lder 23 rests on bent ends 28 of 'arms29 adsprings Stare coiled about rods3l, vone end of each spring engaging lay beam 14 and l the other endiloeing connectec l to a collar 35 adjustablyflsecuredon rod 31. The outer ends of rods3l carry heads retatauly adjustable thereon similar .to heads 30. iFin- .gers 37 are adjustable lengthwise in heads 36 and are provided with humps 38 adapted toslidably engage binders 18 of the shuttle the race. Torsion boxes aligned with humps 38 in en springs 34 normally keep gageinent with binders 18.

A bracket 39, provided with vertical slots- 40, is adj ustably mounted on breast beam 11 by lag bolts 41 passing through the slots and screwed into the breast beam. A non-slidable plate 42, provided with a boss 43, is

adjustably mounted for swinging movement on bracket 39 by a bolt 44 which passes through the boss and bracket and has its headset in a vcounter-bore 45 within the boss. The shank 46 of the bolt is angular at 47 and fits within an angular opening 48 in boss 43 to prevent turning of the bolt 52 is slid-ably mounted on plate 42 preferably by providing slots 53 in plate 52 for.

slidably receiving pro ections 5401i plate 42. A screw and washer may be provided to hold plate 52 against plate 42 as shown at '55. Slidable plate 52 has an arcuate upper edge: 56, corresponding to the arcuate upper edge 49 on non-slidable plate 42. ratchet notch 57 in .arcuate edge 56 provides a shoulder 58 to be engaged by trip 19 when it is about to stop the loom. The top of shoulder 58 is rounded or tapered as shown at 59 so that trip 19, in normally'passing overthe shoulder will not engage it. A slotted member 60 is adjustably connected to the rear end 61 of plate 52; The loom stopping mechanism is connected to this slotted member by an arm 62 fixed 011 knock-off shaft 12 and provided with a pin '63 which slides in slot 64 of the slotted member. Thus slidable plate 52 is directly connected with the. loom stopping mechanism and moved along withit when it is actuated to start or stop the loom while nonslidable plate 42 is fixed to the loom;

In attaching my improved stopping de vice to a loom, bracket 39 is bolted to breast beam 11 by lag bolts 41 and adjusted to the desiredheight by the lag bolts which pass through slots 40 in the bracket, and slidable plate 52 is connected to arm 62 on the knockoff shaft. Trip 19 and its associated parts are attachedto lay beam 14 so that.

humps 38 on fingers 37 will engage binders 18, and bentends 28 Will be under shoulder23.

Plates 42and 52 areadjusted by looseningv the nut on bolt 44 and swinging the platesup or downuntil their arcuate edges coincide with an are described by the swinging movement of the lower edge of trip 19. In other words, the adjustment is such that the arcuate edges of plates 42 and 52, when in the position shown in Figure 3, will barely clear the lower end of trip 19 when the lay beam swings to and from the position shown in' Figure 4.

The arcuate edges will, regardless of the position in which the weaver stops the lay beam, always hold trip 19 in-itsupper or inoperative position whilethe weaver is manipulating the shutles in the boxes thereby causing bent ends 28 to swing free of shoulder 23 on the .trip.. For example, suppose that the loom is stopped by the knockoff lever at a point where trip 19 will be directly above recess 50 or notch 57, the knockoli lever, being connected to slidable plate 52, 'will slide it relatively to non-slidable plate 42, so that recess 50 will be bridged by the arcuate edge 56 and notch 57 by the arcuate edge 49, thus leaving the arcuate edges 49 and 56 so that they form a practically continuous arcuate edge bridging recess 50 and notch 57 as shown in Figure 9.

If the weaver should manipulate the shuttles in the boxes so as to cause. bent ends 28 to swing free of shoulder 23 and release trip 19 when it is directly above recess 50,

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arcuate edge '56 bridging recess 50, will prevent the trip from dropping therein and hold it in its upper position. Similarly if the trip is stopped directly above notch 57, .arcuate edge 49'bridging it will prevent the trip from idropping therein and hold it in its upper position. After the weaver has properly set the shuttles in the boxes, the bent end 28 leading from the empty shuttle boxwill engage shoulder 23 and hold trip 19 in its. upper position, while the other bent endr28, which leads from' the occupied shuttle box, will remain free of shoulder 23. The loom may then be started again by moving the knock-oil lever into its former position. This will move slidable plate 52 and bring notch opposite recess 50 which again places my improved stopping device in set position for stopping the loom. ,Thus'tripj 19 is always held in its upper-"position while the weaver manipulates the shuttles and until one of the bent ends 28 engages under shoulder 23.

j If the weaver should leave a shuttle in each box aligned. with the race, both bent ends 28 will remain free of shoulder 23,

leaving trip 19 free to slide downward.

i/Vhen the loom-is started bymoving the knock-offlever into its starting position,

notch 57 willbe moved by the knock-off 1 menace means to again stop the 100111. After the stopping action occurs, the loom and lay beam are moved a short distance by inertia. Ihave therefore made the length'ot recess so that the distance the lay beam movesv 7 arcuate edge-equal to ah arc described by the swinging movement of the lower edge of the trip and being adjustable sothat an ace curate setting maybe maintained at all times, is readily adapted to operate in conjunction with a "slidabl'e trip. v The slidable trip'is essential to -make the stopping device sensitive because the binders are. moved only a slight distance about an of an inch, by the shuttles, and it requires very little movement of the binders to release a slidable trip which has practically no friction in its movement downward to enagge shoulder 58 and stop the loom. The non-slid-able plate 4-2 and slidable plate 52, having corresponding arcuate edges, produce a practically continuous arcuate edge 'when the plates are slid, relatively to eachother, from their normal to their loom stopping position so that the lay beam may be stopped at any point in its movement without the trip dropping down in recess 50 or notch 57 hile the weaver is manipulating the shuttles in the boxes. l

While I have described ,my invention as taking a particular form, it will be understood that the various parts may be changed Withoutdeparting from, the sp-iritt hereof,

and hence I do not limit myself to the pre-' cis'e construction setfortlr, but consider that plate mounted to slide relatively to the non= slidabl'e 'pl'ate andha'ving an arc-uate edge interrupted by a shoulder; means connectmg the slidable plate with the stop mechanism; a trip on the batten structure adapted to engage the'sho'u lder and cam face-itinlease'd before the loom stops, and be held in raised posit-ion by the -a1*cuateedges it re leased alter the loom stops, and-means cooperating withthe sh taale box' sro r holdingan'd releasing the 'trip;

bre ast .be are, stop mechanism, ba

ture and shuttle boxes; a non-slidab'le' plate X 2. In combination with "a loom having a breast beam, stop mechanism, batten structure and shuttle-boxes; a non=slidable plate secured to the breast beam for vertical and swinging adj ustment and having an a-rcuate edge interrupted by a cam. face; a plate mounted-to slide relatively to the'noir-slich able plate and having an arcuate edge interrupted by shoulder; means connecting the slid-able plate With the stop mechanism; a trip on the batten structure adaptedto engage the shoulder and cam face if released before the loom stops, and be held in raised position by the 'arcu ate edges it released-"after the loomt-stops, and means co-operating' with the shuttle boxes for holding and ire-- leasing the trip. I

In combination with a loom having-"a breast beam, stop mechanism, batten structure andshuttle boxes; a non sli dable plate secured to the breast beam and having arcu'ate edge interrupted by steam face, the

arcuate edge coinciding with an are described from the center of thepivotalfsupport forfthe batten structure ;.'a plate mount"- ed to slide relatively to the non slidable plate and having a corresponding "arcuate'edge interrupted a shoulder; means connecting the slidabile plate with the stop mechanism;

trip os the batten structure adapted to engage the shoulder and cam face if released before the loom stops, and be held in raised position by the arcuate edges if released atter the 100111 stops,}a'nd Jinea'ns cooperating; I

with the shuttle boxes 'for holding andre leasing-thetrip. p r 4-. 1a combhiation with a loom having a breast beam, stop mechanism, batten struc v ture and shuttle boxes; a nonslidableplate secured to the breast beam and having are cess in upper edge forming a c am fa'ce; a plate nounted toslide relatively to the non-slida'ble' plate and having a notch in its upper edge forming a shoulder; means connecting the slid'able plate with the stop mecliai'iisni; a trip "on the batten structure adapted to slippage the shoulder I and cam face if released before the loom stops, and beheld in raised position by the upper edges ef- {the plates it released after the m stops, and neanscooperating with -the' sl 'i ttl'e boxes for he ling and releasing the tr p.

5. I3 1 combination with a "loom l avii'ig retracsecured to the breast beam haying an 7 by a aiotol'i forming a shoulder means con:

nee-ting the slida'ble plate "with the stop a trip on the batten structure adapted to "engage the shoulder' and cam as released aerate the 10 m stops, a

be held in raised position by the arcuate edges if released after the loom stops, and means co-operating With the shuttle boxes for holding and releasing the trip.

6. In combination with a loom having a breast beam, stop mechanism, batten structure and shuttle boxes ;-a non-slidable plate secured to the breast beam and having an arcuate edge interrupted by a cam face; a plate mounted to slide relatively'to the nonslidable plate and having an arcuate edge interrupted by a shoulder; means connecting the slidable plate With the stop mechanism; a'slidable trip on the batten structure adapt ed to engage the shoulder and cam face if released before the loom stops, and be held in raised position'by the arcuate edges if released after the loom stops, and means cooperating With the shuttleboxes for holding and releasing the trip.

7. In combination With a loom having a breast beam, stop mechanism, batten struc ture and shuttle boxes; a non-slidable plate secured to the breast beam and having an arcuate edge interrupted by a recess forming a cam face; projections on the side of the plate; a plate having slots slidable on the projections and provided with an arcuate edge interrupted by a notch forming a shoulder; means connecting the slidable plate to the stop mechanism; a trip on the batten structure adapted to engage the shoulderand cam face if released before the loom stops, and be held in raised position by the arcuate edges if released after the loom stops, and means cc-operating with the shuttle boxes for holding and releasing the trip. 8. In combination With a loom having a breast beam, stop mechanism, batten structure and shuttle boxes; a non-slidable plate secured to the breast beam and havingan arcuate edge'interrupted by a recess forming a cam face; projections onthe side of the plate; a plate having slots slidableon the projections and provided With an arcuate edge interrupted by a notch forming a shoulder; means connecting the slidable plate to the stop mechanism; a trip slidable on the batten structure adapted to engage the shoulder and cam face if released before the looms stops, and be held in raised position by the arcuate edges if released after the loom stops, and means co-operating With ing the slidable plate tothe stop mechanism; a trip on the batten structure adapted to engage the shoulder and cam face, and means: co-operating With the shuttle boxes for holding and releasing the trip.

10. In combination With a loom having a breast beam, stop mechanism, batten structure and shuttle boxes; a bracket. having vertical slots; bolts passing'through the slots for securing the bracket to the breast beam; a non-slidable plate mounted on the bracket for swinging adjustment and having an arcuate edge interrupted by a cam face; a plate mounted to slide relativelyto-the nonslidable plate and having an arcuate edge interrupted by a shoulder; means connecting the slidable plate with the stop mecha nism; a trip on the batten structure adapted to engage the shoulder and cam face, and means co-operating- With the shuttle boxes for holding and releasing the trip.

11. In combination With a loom having a breast beam, stop mechanism, batten struc ture and'shuttle boxes; a bracket mounted on the breast beam for vertical adjustment; a non-slidable plate having an arcuate u per edge interrupted by a cam face; a bolt xed to the plate for adjustably securing the plate to the bracket; a plate mounted to slide relatively to the non-slidable plate and having an arcuate edge interrupted by a shoulder; means connecting the slidable plate With the stop mechanism; a trip on thebatten structure adapted to engage theshoulder and cam face, and means co-operating With the shuttle boxes'for holdingand releasing the trip.

12. Incombination With a loom having a breast'beam, stop mechanism, batten structure and shuttle boxes; a bracket mounted on the breast beam for vertical adjustment and having an opening; a non-slidable plate having an arcuate upper edge interrupted by a cam face; a boss on: the plate having a counterbore and an angular opening;.'a securing bolt having an angular part fitting Within the angular opening and passing through the opening in the bracket for adjustably securing the plate to the bracket; a plate mounted to slide relatively to the nonslidable plate and having an arcuateedge interrupted by a shoulder; means connecting the slidable plate With the stop mechanism; a trip onthe batten structure adapted to enga e the shoulder and c'amface, and

b u means co-operatmg withthe shuttle boxes trip downward; means co-operating With the shuttle boxes for engaging the shoulder to hold the trip in its upper position, and means co-operating With the trip for stopping the loom.

14:. In combination With a loom having a batten structure and shuttle boxes; a trip having a shoulder in its upper end slidable on the batten structure; rods rockably mounted on the batten structure; mounted on the inner ends ofthe rods for adjustment about the axis of the rods and for adjustment radially of the rods and having bent upper ends engaging the shoulder; means on the outer ends of the rods co-operating with the shuttle boxes to move the arms and release the trip, and means cooperating With the trip for stopping the loom. V

15. In combination with a loom having a batten structure and shuttle boxes; a trip having a shoulder in its upper end slidable on the" batten structure; rods rockably mounted on the batten structure; heads adjustably mounted on the inner ends of the rods; arms adjustably mounted on the heads and having bent upper ends engaging the shoulder; means on the outer ends of the rod co-operating With the shuttle'boxes to move the arms and release the trip, and means co-operating with the trip for stopping the loom. I

16. In combination with a loom having a batten structure and shuttle boxes; a trip having a shoulder in its upper end slidable on the batten structure; rods rockably mounted on the batten structure; arms adjust-ably mounted on the inner ends of the rods and having bent upper ends engaging arms the shoulder; fingers mounted on the outer ends for adjustment about the axis of the rods and for adjustment radially of the rods and having humps engaging the shuttle boxes for removing the arms to release the,

trip, and means co-operating with the tri for stopping the loom. I

17. In combination With a loom having a batten structure and shuttle boxes; a trip having a' shoulder in its upper end slidable and having bent upper "ends engaging the shoulder; heads adjustably mounted on" the outer ends of the rods; fingers having humps engaging the shuttle boxes adjustably mounted in said heads, and means co-operating With the trip for stopping the loom.

18. In combination with a loomhaving batten structure and shuttle boxes; a bracket, having guide eyes and lugs provided With openings, secured to the battenstructure; a trip provided With a shoulder in its upper end slidable in the guide eyes;,,a coiled spring connected to the trip and having its ends extending through the openings; means co-operatingwith theshuttle boxes for engaging the shoulder to hold the'trip in its upper pos1t1on,-and means co-operating Withthe trip for stopping the loom. v v

In testimony whereof I have signed my name to this specificationfin the presence of two subscribing Witnesses.

, OSGABC. ECKLUND.

Witnesses: r

ELIZABETH GARB CHAS. Porrs. 

